TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
BRONSTED ACID [5 records]
Record 1 - internal organization data 2011-10-11
Record 1, English
Record 1, Subject field(s)
- Chemistry
- Electrolysis (Electrokinetics)
- Electrochemistry
Record 1, Main entry term, English
- Lewis acid
1, record 1, English, Lewis%20acid
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A substance that can accept an electron pair from a base. 2, record 1, English, - Lewis%20acid
Record number: 1, Textual support number: 1 CONT
... the term Lewis acid will be employed exclusively to refer to electron-pair acceptors. ... The definition of Lewis acids and bases in terms of gain or loss of electrons should not be confused with the definition of oxidising and reducing agents in similar terms. 3, record 1, English, - Lewis%20acid
Record number: 1, Textual support number: 1 OBS
Usually the word "acid" refers to a "proton donor" following the Brönsted-Lowry theory. When it refers to an electron-pair acceptor it is usual to specify that it is a Lewis acid opposed to a Brönsted acid or proton acid. This terminology represents the commonest usage of the terms(ENBRT, vol. 1, p. 47). 4, record 1, English, - Lewis%20acid
Record 1, French
Record 1, Domaine(s)
- Chimie
- Électrolyse (Électrocinétique)
- Électrochimie
Record 1, Main entry term, French
- acide de Lewis
1, record 1, French, acide%20de%20Lewis
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- acide électrophile 2, record 1, French, acide%20%C3%A9lectrophile
correct, masculine noun
- acide selon Lewis 3, record 1, French, acide%20selon%20Lewis
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Composé accepteur de doublet. Ex. : [...] BF3. 4, record 1, French, - acide%20de%20Lewis
Record number: 1, Textual support number: 1 CONT
Les acides de Lewis, accepteurs d'électrons, sont souvent nommés électrophiles; les bases de Lewis se fixent sur la région des particules acides pauvre en électrons, et par conséquent où l'influence positive du noyau se fait davantage sentir : on les nomme nucléophiles. 2, record 1, French, - acide%20de%20Lewis
Record number: 1, Textual support number: 1 OBS
On appelle plus particulièrement «acides de Lewis» des acides (comme BF3, A1C13, Ticl4) qui n'en sont pas selon la définition de Brönsted puisqu'ils n'échangent pas de protons mais acceptent bien, selon la définition de Lewis, une paire d'électrons. 5, record 1, French, - acide%20de%20Lewis
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2011-06-17
Record 2, English
Record 2, Subject field(s)
- Chemical Elements and Compounds
Record 2, Main entry term, English
- Brönsted acid
1, record 2, English, Br%C3%B6nsted%20acid
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- Brønsted acid 2, record 2, English, Br%C3%B8nsted%20acid
correct
- proton acid 3, record 2, English, proton%20acid
correct
- protonic acid 4, record 2, English, protonic%20acid
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A chemical species which can act as a source of protons. 5, record 2, English, - Br%C3%B6nsted%20acid
Record number: 2, Textual support number: 1 CONT
... strengths of acids and bases are not independent. A very strong Brönsted acid implies a very weak conjugate base and vice versa. 6, record 2, English, - Br%C3%B6nsted%20acid
Record number: 2, Textual support number: 1 OBS
Usually the word "acid" refers to a "proton donor" following the Brönsted-Lowry theory. When it refers to an electron-pair acceptor it is usual to specify that it is a Lewis acid as opposed to a Brönsted acid or proton acid. 3, record 2, English, - Br%C3%B6nsted%20acid
Record 2, French
Record 2, Domaine(s)
- Éléments et composés chimiques
Record 2, Main entry term, French
- acide de Brönsted
1, record 2, French, acide%20de%20Br%C3%B6nsted
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- acide de Brønsted 2, record 2, French, acide%20de%20Br%C3%B8nsted
correct, masculine noun
- acide protonique 3, record 2, French, acide%20protonique
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Entité moléculaire, ou l'espèce chimique correspondante, capable de céder un hydron (proton) en donnant une autre entité ou espèce chimique : la base conjuguée. 4, record 2, French, - acide%20de%20Br%C3%B6nsted
Record number: 2, Textual support number: 1 CONT
Si l'on compare les définitions de Brönsted et Lewis, on remarque qu'en général les bases de Lewis sont également des bases de Brönsted [...] En ce qui concerne les acides, il y a quelques divergences entre les deux théories : BF3, Ag+ ne sont pas des acides de Brönsted, puisqu'ils ne peuvent fournir de protons. 5, record 2, French, - acide%20de%20Br%C3%B6nsted
Record number: 2, Textual support number: 1 OBS
On qualifie les acides de ce type de «forts» ou «faibles» selon qu'ils sont complètement ou partiellement dissociés en solution aqueuse. 4, record 2, French, - acide%20de%20Br%C3%B6nsted
Record number: 2, Textual support number: 2 OBS
acide de Brønsted : terme et définition publiés au Journal officiel de la République française le 8 octobre 2003. 6, record 2, French, - acide%20de%20Br%C3%B6nsted
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2010-09-15
Record 3, English
Record 3, Subject field(s)
- Chemical Engineering
Record 3, Main entry term, English
- acid catalyst
1, record 3, English, acid%20catalyst
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Acid catalysts are employed in such diverse areas as Friedel-Crafts reactions(qv) and reactions in the presence of clays. The isomerization of n-butane over an aluminum halide-hydrogen catalyst takes place only in the presence of olefins. Friedel-Crafts catalysts, mineral acids... all act in a similar manner because of their essential acidity. In each case the active catalyst contains a proton; it is a Brönsted acid.... Catalytic activity of acid catalysts is correlated with surface acidity for different reactions. The Brönsted acidity is necessary for successful catalytic cracking, and the distribution of acid strengths is important. 2, record 3, English, - acid%20catalyst
Record 3, French
Record 3, Domaine(s)
- Génie chimique
Record 3, Main entry term, French
- catalyseur acide
1, record 3, French, catalyseur%20acide
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 OBS
Dans les réactions de catalyse acido-basique, l'une au moins des étapes est un transfert de proton du catalyseur au substrat S (catalyse acide) ou du substrat au catalyseur (catalyse basique). Le substrat intervient, de ce fait, soit comme base, soit comme acide, et la réaction implique donc un équilibre protolytique. 2, record 3, French, - catalyseur%20acide
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 1989-11-15
Record 4, English
Record 4, Subject field(s)
- Chemical Elements and Compounds
Record 4, Main entry term, English
- strong Bronsted acid
1, record 4, English, strong%20Bronsted%20acid
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 CONT
Chemical ionization.... Frequently the reactant gas is methane.... The resulting ions are strong Bronsted acids and react by proton transfer ... to ionize the molecule of interest. 1, record 4, English, - strong%20Bronsted%20acid
Record number: 4, Textual support number: 1 OBS
The "o" in Bronsted appears with a diaeresis over it 2, record 4, English, - strong%20Bronsted%20acid
Record 4, French
Record 4, Domaine(s)
- Éléments et composés chimiques
Record 4, Main entry term, French
- acide fort de Bronsted
1, record 4, French, acide%20fort%20de%20Bronsted
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 CONT
Ionisation chimique (...) L'ionisation, qui fait intervenir un gaz réactant, par exemple le méthane, s'effectue en plusieurs étapes. Ionisation par bombardement électronique du gaz réactant (...) Réactions ions-molécules du gaz réactant : (...) CH5[exposant]+ se comporte (...) comme des acides forts de Bronsted. 1, record 4, French, - acide%20fort%20de%20Bronsted
Record number: 4, Textual support number: 1 OBS
Le "o" de Bronsted est un "o" barré danois. 2, record 4, French, - acide%20fort%20de%20Bronsted
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 1982-08-05
Record 5, English
Record 5, Subject field(s)
- Electrolysis (Electrokinetics)
- Electrochemistry
- Chemistry
Record 5, Main entry term, English
- conjugate base
1, record 5, English, conjugate%20base
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
... strengths of acids and bases are not independent. A very strong Bronsted acid implies a very weak conjugate base and vice versa. 1, record 5, English, - conjugate%20base
Record 5, French
Record 5, Domaine(s)
- Électrolyse (Électrocinétique)
- Électrochimie
- Chimie
Record 5, Main entry term, French
- base conjuguée
1, record 5, French, base%20conjugu%C3%A9e
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
- partenaire basique 2, record 5, French, partenaire%20basique
correct, masculine noun
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
(...) une réaction effective acide-base est la combinaison de deux couples acide-base : le proton ne pouvant exister de façon permanente à l'état libre dans les solutions, un corps ne peut fonctionner comme acide que si une base (autre que sa base conjuguée) est présente pour capter les protons émis par l'acide. 1, record 5, French, - base%20conjugu%C3%A9e
Record 5, Spanish
Record 5, Textual support, Spanish
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